Adjustable flushing system with mechanical direct flushing valve

Abstract

The utility model provides an adjustable flushing system of a mechanical direct flushing valve, which comprises a valve body provided with a water inlet channel and a water outlet channel, a control valve used for controlling the on-off of the water outlet channel is arranged on the valve body, and the water inlet channel is communicated with the water outlet channel; a water drainage channel is formed in a cylinder body of the driving cylinder, a movable driving rod is arranged in the driving cylinder, and the driving rod can be in transmission fit with the control valve to open or close the water outlet channel; the water inlet channel communicates with the driving cylinder, and water in the water inlet channel enters the driving cylinder to drive the driving rod to move; and the adjusting piece is arranged on the water drainage channel and can adjust the overflowing sectional area of the water drainage channel. The water drainage speed is controlled by adjusting the overflowing sectional area of the water drainage channel through the adjusting piece, then the moving speed of the driving rod is adjusted, the opening and closing speed of the control valve matched with the driving rod can be adjusted, the opening and closing duration of a water path can be adjusted in a power-off state without using an electromagnetic valve, and the water path can be normally used in the power-off state.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary products, in particular to an adjustable mechanical flush valve flushing system. Background Art

[0002] The current flush valve relies on solenoid valves to open the water circuit, and relies on the motherboard to control the opening sequence of the solenoid valves to switch between different water circuits and achieve flushing functions, such as main flushing and brush ring flushing. By controlling the on-off time of the solenoid valve to control the opening time of the water circuit, when there is no electricity, the toilet using the flush valve cannot achieve the normal flushing function, nor can it adjust the opening and closing time of the water circuit. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide an adjustable mechanical flush valve flushing system.

[0004] The utility model adopts the following method to achieve: an adjustable mechanical direct flush valve flushing system, comprising:

[0005] A valve body having a water inlet channel and a water outlet channel, wherein a control valve for controlling the on-off of the water outlet channel is provided on the valve body, and the water inlet channel is connected to the water outlet channel;

[0006] A driving cylinder, wherein a drain channel is provided on the cylinder body of the driving cylinder, and water in the driving cylinder can be discharged through the drain channel; a movable driving rod is provided in the driving cylinder, and the driving rod can cooperate with a control valve to open or close the water outlet channel; the water inlet channel is connected to the driving cylinder, and water in the water inlet channel enters the driving cylinder to drive the driving rod to move;

[0007] The adjusting member is arranged in the water discharge channel, and the adjusting member can adjust the flow cross-sectional area of ​​the water discharge channel.

[0008] Preferably, a drain pipe is provided on the cylinder body of the driving cylinder, the drain pipe has a drain hole, the drain hole forms the drain channel, and the regulating member adjusts the flow cross-sectional area of ​​the drain channel by adjusting the flow cross-sectional area of ​​the drain hole.

[0009] Preferably, a drain pipe is provided on the cylinder body of the driving cylinder, the drain pipe has a drain cavity, the drain cavity forms the drain channel, and the regulating member adjusts the flow cross-sectional area of ​​the drain channel by adjusting the size of the drain cavity.

[0010] Preferably, a concave cavity with an opening is provided on the outer side of the drain pipe, and the adjusting member includes an adjustably arranged screw cap at the opening, and an abutment portion is provided on the side of the screw cap facing the drain cavity, and the abutment portion extends into the concave cavity and cooperates with the concave cavity to enclose the drain cavity.

[0011] Preferably, the control valve includes a first control valve and a second control valve, the water outlet channel includes a first water outlet channel and a second water outlet channel, the first control valve and the second control valve are both arranged on the valve body, the first control valve is used to control the on-off of the first water outlet channel, and the second control valve is used to control the on-off of the second water outlet channel, and when the driving rod moves from the first preset position to the second preset position, the driving rod controls the first control valve and the second control valve to open simultaneously or sequentially.

[0012] Preferably, when the driving rod moves from the second preset position to the first preset position, the first control valve and / or the second control valve is not opened.

[0013] Preferably, the first control valve is provided with a first cam mechanism and a first lifting rod, the first cam mechanism is connected to the first lifting rod, the second control valve is provided with a second cam mechanism and a second lifting rod, the second cam mechanism is connected to the second lifting rod; the surface of the driving rod is provided with a first boss and a second boss which respectively cooperate with the first cam mechanism and the second cam mechanism; when the first cam mechanism and the first boss give way to each other, the first lifting rod controls the first control valve to close, and when the first cam mechanism and the first boss abut and transmit to each other, the first lifting rod controls the first control valve to open; when the second cam mechanism and the second boss give way to each other, the second lifting rod controls the second control valve to close, and when the second cam mechanism and the second boss abut and transmit to each other, the second lifting rod controls the second control valve to open.

[0014] Preferably, the first cam mechanism includes a camshaft and a cam, the camshaft is fixedly connected to the first lifting rod, and a second limiting protrusion is provided on the circumferential surface of the camshaft; the cam is sleeved on the camshaft, and a first limiting protrusion cooperating with the second limiting protrusion is provided on the inner circumferential surface of the cam; the first boss on the driving rod drives the cam to rotate in a clockwise direction, and the cam rotates relative to the camshaft to make way for the first boss; the cam can rotate counterclockwise under the action of gravity or elastic force, so that the first limiting protrusion and the second limiting protrusion limit rotation, and then the cam abuts against the first boss to drive the first lifting rod to open the first pressure relief hole of the first control valve; the second cam mechanism has the same structure as the first cam mechanism, and the camshaft of the second cam mechanism is fixedly connected to the second lifting rod.

[0015] Preferably, the driving rod includes the first boss and the second boss arranged at intervals in front and back along the movement direction of the driving rod; or, the driving rod includes two first rod bodies and second rod bodies arranged in parallel, the first rod body is provided with the first boss, the second rod body is provided with the second boss, and the first boss and the second boss are staggered along the movement direction of the driving rod.

[0016] Preferably, two first bosses are provided and are spaced apart from each other in the front and rear direction along the movement direction of the driving rod; and one second boss is provided.

[0017] Preferably, a switch is also included, and a driving water circuit is also provided on the valve body. The water inlet channel is connected to the driving cylinder through the driving water circuit. A second pressure relief hole is provided on one side of the driving water circuit. A water stop pad cooperating with the second pressure relief hole is provided in the driving water circuit. The switch can open the second pressure relief hole so that the water pressure can push open the water stop pad.

[0018] The beneficial effects of the present invention are as follows: the present invention provides an adjustable mechanical direct flush valve flushing system. Compared with the prior art, the present invention has at least the following technical effects: 1. This purely mechanical direct flush valve relies on the drainage speed of the drainage channel of the driving cylinder to control the moving speed of the driving rod, thereby controlling the opening and closing time of the water outlet channel (brush circle water channel, main flushing water channel), and by arranging an adjustment member on the drainage channel, the drainage speed is controlled by adjusting the flow cross-sectional area of ​​the drainage channel through the adjustment member, thereby realizing the adjustment of the driving rod movement speed, and also realizing the adjustment of the opening and closing speed of the control valve matched therewith. Without using an electromagnetic valve, the opening and closing time of the water channel can be adjusted in the off-power state, and it can be used normally in the off-power state.

[0019] 2. The screw cap of the adjusting part cooperates with the end face or radial direction of the drain pipe provided with the drain channel, and controls the distance between the abutting part and the drain chamber (for example, by rotating the thread), thereby controlling the size of the flow cross-section of the drain chamber and the drain speed of the driving cylinder. It is convenient to adjust the opening and closing time of the brush ring and the main flushing water channel without adjusting the time by replacing parts or using solenoid valve control.

[0020] 3. By arranging two independent rows of first bosses and second bosses on one driving rod, asynchronous control of the first control valve and the second control valve can be realized, and the first lifting rod and the second lifting rod can be opened sequentially or synchronously.

[0021] 4. The driving rod is driven by water pressure, and the water entering the driving cylinder is controlled by a switch. No solenoid valve control is required, and it can be used normally without electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1The utility model is a schematic diagram of the water flow state of an adjustable mechanical flush valve flushing system.

[0023] Figure 2 The utility model is a structural schematic diagram of a water discharge part of a driving cylinder of an adjustable mechanical flush valve flushing system.

[0024] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0025] Figure 4 It is a schematic diagram of the connection status of the piston cylinder, piston rod and waterway pressure rod.

[0026] Figure 5 It is a schematic diagram of the state in which the driving rod of the utility model is retracted into the driving cylinder.

[0027] Figure 6 yes Figure 5 The enlarged schematic diagram of the part at B in the middle shows that the cam mechanism is in the yielding state at this time.

[0028] Figure 7 It is a schematic diagram of the state in which the reset member of the driving rod of the utility model drives the driving cylinder to be pushed out. Figure 8 yes Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0029] Fig. 9 It is a schematic diagram of the rising state of the cam mechanism along the slope of the first boss or the second boss.

[0030] Fig.10 yes Fig. 9 A partial enlarged schematic diagram of point D in the middle.

[0031] Fig.11 It is a schematic diagram of the structure of the driving rod.

[0032] Fig.12 It is a schematic diagram of the connection state of the first lifting rod of the first control valve and the first cam mechanism.

[0033] Fig.13 It is a structural schematic diagram of the first cam mechanism.

[0034] Description of the accompanying figures: 1-valve body, 11-water inlet channel, 12-first water outlet channel, 13-second water outlet channel, 14-driving water channel, 141-second pressure relief hole, 142-water stop pad, 15-first control valve, 151-first cam mechanism, 1511-camshaft, 1512-cam, 1513-second limiting protrusion, 1514-first limiting protrusion, 1515-allowing groove, 152-first Lifting rod, 16-second control valve, 161-second cam mechanism, 162-second lifting rod, 2-driving cylinder, 21-elastic member, 22-drainage channel, 3-driving rod, 31-first boss, 32-second boss, 4-adjusting member, 41-screw cover, 411-abutment portion, 42-drainage pipe, 421-drainage chamber, 5-piston rod, 6-piston cylinder, 7-pneumatic switch, 8-water channel pressure rod, 9-reset spring. DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] See also Figures 1 to 13 , an adjustable mechanical flush valve flushing system, comprising:

[0037] The valve body 1 has a water inlet channel 11 and a water outlet channel. The valve body 1 is provided with a control valve for controlling the on-off of the water outlet channel. The water inlet channel 11 is connected to the water outlet channel.

[0038] A driving cylinder 2, wherein a drain channel 22 is provided on the cylinder body of the driving cylinder 2, and water in the driving cylinder 2 can be discharged through the drain channel 22; a movable driving rod 3 is provided in the driving cylinder 2, and the driving rod 3 can cooperate with the control valve to open or close the water outlet channel; the water inlet channel 11 is connected to the driving cylinder 2, and the water in the water inlet channel 11 enters the driving cylinder 2 to drive the driving rod 3 to move;

[0039] The regulating member 4 is arranged in the drainage channel 22, and the regulating member 4 can adjust the flow cross-sectional area of ​​the drainage channel 22. This pure mechanical direct flushing valve relies on the drainage speed of the drainage channel 22 of the driving cylinder 2 to control the moving speed of the driving rod 3, and then controls the opening and closing time of the water outlet channel (brush ring water channel, main flushing water channel), and by arranging an regulating member 4 on the drainage channel 22, the drainage speed is controlled by adjusting the flow cross-sectional area of ​​the drainage channel 22 through the regulating member 4, and then the movement speed of the driving rod 3 is adjusted, and the opening and closing speed of the control valve matched therewith can be adjusted, and the opening and closing time of the water channel can be adjusted in the power-off state without using a solenoid valve, and it can be used normally in the power-off state.

[0040] See also Figures 1 to 13Preferably, a drain pipe 42 is provided on the cylinder body of the driving cylinder 2, and the drain pipe 42 has a drain hole and a drain chamber 421 connected to the drain hole, and the drain hole and the drain chamber 421 constitute the drain channel 22, and the adjusting member 4 adjusts the flow cross-sectional area of ​​the drain channel 22 by adjusting the size of the drain chamber 421. A concave cavity with an opening is provided on the outside of the drain pipe 42, and the adjusting member 4 includes an adjustable rotary cover 41 arranged at the opening, and a contact portion 411 is provided on one side of the rotary cover 41 facing the drain chamber 421, and the contact portion 411 extends into the concave cavity and cooperates with the concave cavity to enclose the drain chamber 421, and the rotary cover 41 can be rotated to adjust the gap size between the contact portion 411 and the drain chamber 421 to adjust the flow cross-sectional area of ​​the drain channel 22. In other embodiments, the flow cross-sectional area of ​​the drain channel 22 can also be adjusted by adjusting the flow cross-sectional area of ​​the drain hole. The rotary cover 41 of the regulating member 4 is matched with the end face or radial direction of the drain pipe 42 provided with the drain channel 22. By controlling the distance between the abutment portion 411 and the drain chamber (for example, by rotating the thread), the size of the flow cross section of the drain channel 22 is controlled, and the drain speed of the driving cylinder 2 is controlled. It is convenient to adjust the opening and closing time of the brush ring and the main flushing water path, without adjusting the time by replacing parts, and without using electromagnetic valve control. Preferably, a gasket is also provided between the drain chamber 421 and the abutment portion 411, and a through hole can also be provided on the gasket, and the water in the drain chamber 421 can also be discharged through the through hole. The rotary cover 41 also includes a threaded portion, which is threadedly connected to the thread on the drain pipe 42.

[0041] See also Figures 1 to 13 Preferably, the control valve includes a first control valve 15 and a second control valve 16, the water outlet channel includes a first water outlet channel 12 and a second water outlet channel 13, the first control valve 15 and the second control valve 16 are both arranged on the valve body 1, the first control valve 15 is used to control the on and off of the first water outlet channel 12, and the second control valve 16 is used to control the on and off of the second water outlet channel 13, the drive rod 3 moves from the second preset position to the first preset position, and the first control valve 15 and / or the second control valve 16 are not opened; in the process of the drive rod 3 moving from the first preset position to the second preset position, the drive rod 3 and the first control valve 15 and the second control valve 16 are opened in sequence or simultaneously in transmission cooperation. One drive rod 3 drives two control valves to open and close, so as to realize that one drive rod 3 controls the main flushing function and the brushing circle function; the overall structure is simplified and the production cost is reduced. The timing of opening and closing of the two control valves can be adjusted according to user needs.

[0042] See also Figures 1 to 13Preferably, the first control valve 15 is provided with a first cam mechanism 151 and a first lifting rod 152, the first cam mechanism 151 is connected to the first lifting rod 152, the second control valve 16 is provided with a second cam mechanism 161 and a second lifting rod 162, the second cam mechanism 161 is connected to the second lifting rod 162; the surface of the driving rod 3 is provided with a first boss 31 and a second boss 32 respectively cooperating with the first cam mechanism 151 and the second cam mechanism 161; when the first cam mechanism 151 and the first boss 31 give way to cooperate, the first lifting rod 152 controls the first control valve 15 to close, and when the first cam mechanism 151 and the first boss 31 are in abutment and transmission cooperation, the first lifting rod 152 controls the first control valve 15 to open; when the second cam mechanism 161 and the second boss 32 give way to cooperate, the second lifting rod 162 controls the second control valve 16 to close, and when the second cam mechanism 161 and the second boss 32 are in abutment and transmission cooperation, the second lifting rod 162 controls the second control valve 16 to open. The second lifting rod 162 and the first lifting rod 152 are both provided with a return spring 9 for driving the second lifting rod 162 and the first lifting rod 152 to return to their original positions.

[0043] See also Figures 1 to 13Preferably, the first cam mechanism 151 includes a camshaft 1511 and a cam 1512, the camshaft 1511 is fixedly connected to the first lifting rod 152, and a second limiting protrusion 1513 is provided on the circumference of the camshaft 1511; the cam 1512 is sleeved on the camshaft 1511, and a first limiting protrusion 1514 cooperating with the second limiting protrusion 1513 is provided on the inner circumference of the cam 1512; the first boss 31 on the driving rod 3 drives the cam 1512 to rotate in the clockwise direction, and the cam 1512 rotates relative to the camshaft 1511 to move the first boss 31 When the driving rod 3 moves from the first preset position to the second preset position, the cam 1512 can be reset under the action of gravity or elastic force, and the driving rod 3 drives the cam 1512 to rotate counterclockwise, so that the first limiting protrusion 1514 and the second limiting protrusion 1513 are limited and rotated, and then the cam 1512 abuts against the first boss 31 to drive the first lifting rod 152 to lift up and open the first pressure relief hole of the first control valve 15; the second cam mechanism 161 has the same structure as the first cam mechanism 151, and the cam shaft of the second cam mechanism 161 is fixedly connected to the second lifting rod 162. The structure and working principle of the second cam mechanism 161 refer to the first cam mechanism 151, and no detailed description is given. The movement of the second preset position to the first preset position is the direction in which the driving rod 3 extends from the driving cylinder 2. When the driving rod 3 extends, the cam 1512 will rotate relative to the camshaft 1511, that is, the cam 1512 is driven by the driving rod 3 to move upward, and the upward movement of the cam 1512 is converted into a relative rotation of the camshaft 1511 and the cam 1512, thereby preventing the camshaft 1511 from being driven to move upward and the first lifting rod 152 or the second lifting rod 162 being lifted to control the first control valve and / or the second control valve not to open. The movement of the first preset position to the second preset position is the process in which the driving rod 3 retracts. The cam 1512 can rotate counterclockwise under the action of gravity or elastic force, so that the first limiting protrusion 1514 and the second limiting protrusion 1513 are limited to rotate, and then the camshaft 1511 and the cam 1512 cannot rotate relative to each other, and then the camshaft 1511 can only move upward with the cam 1512, thereby driving the first lifting rod 152 and the second lifting rod 162 to lift to control the first control valve and the second control valve to open simultaneously or sequentially.

[0044] See also Figures 1 to 13Preferably, the inner circumference of the cam 1512 is provided with a concentric groove 1515 adjacent to the first limiting protrusion 1514, so that the second limiting protrusion 1513 can move to make way; when the driving rod 3 is reset, the driving rod 3 drives the cam 1512 to rotate counterclockwise, and the first limiting protrusion 1514 and the second limiting protrusion 1513 abut against the limiting position, thereby driving the first lifting rod 152 to lift up and open the first pressure relief hole of the first control valve 15. The opening method of the pressure relief hole of the second control valve 16 is the same as that of the first control valve 15. When the pressure relief hole is opened, the water pressure can push open the water stop pads corresponding to the first water outlet channel 12 and the second water outlet channel 13 to discharge water. The coordinated control of the water stop pad and the pressure relief hole is a conventional technical means in this field and will not be described in detail.

[0045] See also Figures 1 to 13 Preferably, the said giving way groove 1515 is provided with two arrays arranged on the inner circumference of the said cam 1512, the two said first limiting protrusions 1514 are respectively arranged between the two ends of the two giving way grooves 1515, and the said camshaft 1511 is symmetrically provided with two said second limiting protrusions 1513 on the outer circumference, and the two said second limiting protrusions 1513 are respectively located in the two giving way grooves 1515. The circumferential dimension of the said second limiting protrusion 1513 is smaller than the circumferential dimension of the said giving way groove 1515. The setting of the giving way groove 1515 enables the cam 1512 and the camshaft 1511 to rotate relative to each other within a certain angle range, that is, to achieve clockwise rotation giving way, and counterclockwise rotation to lift the corresponding lifting rod, so as to reserve space for the second limiting block to move relative to the giving way groove 1515, that is, to reserve movement space for the cam 1512 to give way to the boss relative to each other.

[0046] See also Figures 5 to 13 Preferably, the driving rod 3 includes the first boss 31 and the second boss 32 arranged at intervals in front and back along the moving direction of the driving rod 3; or, the driving rod 3 includes two first rod bodies and second rod bodies arranged in parallel, the first rod body is provided with the first boss 31, the second rod body is provided with the second boss 32, and the first boss 31 and the second boss 32 are staggered along the moving direction of the driving rod 3. By arranging two independent rows of first bosses 31 and second bosses 32 on one driving rod 3, asynchronous control of the first control valve 15 and the second control valve 16 can be achieved, and the first lifting rod 152 and the second lifting rod 162 can be opened in sequence. Of course, in other embodiments, the first boss 31 and the second boss 32 can also be arranged side by side to achieve the simultaneous opening of the first lifting rod 152 and the second lifting rod 162.

[0047] See also Figures 5 to 13Preferably, two first bosses 31 are provided and arranged at intervals in the direction of movement of the driving rod; one second boss 32 is provided. When flushing the toilet, water can be discharged from the brush ring, main flushing, and brush ring in sequence.

[0048] See also Figures 1 to 11 Preferably, an elastic member 21 is provided in the cylinder body of the driving cylinder 2, and the elastic member 21 is used to drive the driving rod 3 to reset. When water enters the driving cylinder 2, it can overcome the force of the elastic member 21 to move the driving rod 3 from the second preset position to the first preset position. When water is discharged from the drain channel 22, the elastic member 21 can be reset. Preferably, the elastic member 21 is a spring or silica gel, etc., but it is not limited thereto.

[0049] See also Figures 1 to 3 Preferably, it also includes a piston rod 5 and a piston cylinder 6, the piston cylinder 6 is provided with an air inlet 61 connected to a pneumatic switch 7, a driving water circuit 14 is also provided on the valve body 1, the water inlet channel 11 is connected to the driving cylinder 2 through the driving water circuit 14, a second pressure relief hole 141 is provided on one side of the driving water circuit 14, a water stop pad 142 matching the second pressure relief hole 141 is provided in the driving water circuit 14, an end cover of the pressure relief hole away from the driving water circuit 14 is connected to a water circuit pressure rod 8, the other end of the water circuit pressure rod 8 abuts against the piston rod 5, and when the piston rod 5 is pushed out by air pressure, the water circuit pressure rod 8 is lifted to open the second pressure relief hole 141, so that the water pressure can push open the water stop pad 142. By pressing the pneumatic switch 7, the gas enters the piston cylinder 6 through the air inlet, pushing the piston rod 5 out, and then lifting the water pressure rod pressed on the second pressure relief hole 141. The water stop pad of the driving waterway 14 is pushed open by the water pressure, and the water in the water inlet channel 11 can enter the driving cylinder 2 to drive the driving rod 3 to move.

[0050] The utility model has the following working principle:

[0051] Press the pneumatic switch 7, the air enters from the air inlet and pushes the piston cylinder 6 piston rod 5, so that the waterway pressure rod 8 opens the second pressure relief hole 141 of the driving waterway 14, and then opens the water stop pad of the driving waterway 14, and at this time, water enters the driving cylinder 2;

[0052] Water enters the drive cylinder 2, and the drive rod 3 is pressed by the water to overcome the spring force and returns to the drive cylinder 2. During this process, the cam 1512 moves toward the drive cylinder 2 along with the drive rod 3, and rotates clockwise (as shown in FIG. Figure 5 , Figure 6 As shown). Since the first cam mechanism 151 of the first control valve 15 is in the yielding state, the brush ring water stop pad of the first water outlet channel 12 will not be opened if the first lifting rod 152 is not lifted at this time; the second lifting rod 162 of the second control valve 16 is also the same.

[0053] The pneumatic switch 7 stops the air intake, the water pressure acting on the driving rod 3 disappears, and the driving rod 3 is moved away from the driving cylinder 2 by the spring force of the elastic member 21 (moves to the right, such as Figures 7 to 10 The cam 1512 and the camshaft 1511 are mutually limited, and the cam 1512 cannot rotate, and rises along the corresponding boss slope of the driving rod 3, driving the corresponding first lifting rod 152 to rise, and the second lifting rod 162 is the same; that is, the corresponding first water outlet channel 12 and the second water outlet channel 13 are opened.

[0054] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0055] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0056] Finally, the above is only a preferred implementation of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0057] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the utility model should also be regarded as within the protection scope of the utility model.

Claims

1. An adjustable mechanical flush valve flushing system, characterized in that: include: A valve body having a water inlet channel and a water outlet channel, wherein a control valve for controlling the on-off of the water outlet channel is provided on the valve body, and the water inlet channel is connected to the water outlet channel; A driving cylinder, wherein a drain channel is provided on the cylinder body of the driving cylinder, and water in the driving cylinder can be discharged through the drain channel. A movable driving rod is provided in the driving cylinder, and the driving rod can cooperate with a control valve to open or close the water outlet channel; The water inlet channel is connected to the driving cylinder, and water in the water inlet channel enters the driving cylinder to drive the driving rod to move; The adjusting member is arranged in the water discharge channel, and the adjusting member can adjust the flow cross-sectional area of ​​the water discharge channel.

2. The adjustable mechanical flush valve flushing system according to claim 1, characterized in that: A drain pipe is provided on the cylinder body of the driving cylinder. The drain pipe has a drain hole. The drain hole forms the drain channel. The adjusting member adjusts the flow cross-sectional area of ​​the drain channel by adjusting the flow cross-sectional area of ​​the drain hole.

3. The adjustable mechanical flush valve flushing system according to claim 1, characterized in that: A drain pipe is provided on the cylinder body of the driving cylinder. The drain pipe has a drain cavity. The drain cavity forms the drain channel. The adjusting member adjusts the flow cross-sectional area of ​​the drain channel by adjusting the size of the drain cavity.

4. The adjustable mechanical flush valve flushing system according to claim 3, characterized in that: A concave cavity with an opening is provided on the outside of the drain pipe, and the adjusting member includes an adjustably arranged screw cap at the opening, and an abutment portion is provided on the side of the screw cap facing the drain cavity, and the abutment portion extends into the concave cavity and cooperates with the concave cavity to enclose the drain cavity.

5. The adjustable mechanical flush valve flushing system according to claim 1, characterized in that: The control valve includes a first control valve and a second control valve, the water outlet channel includes a first water outlet channel and a second water outlet channel, the first control valve and the second control valve are both arranged on the valve body, the first control valve is used to control the on-off of the first water outlet channel, and the second control valve is used to control the on-off of the second water outlet channel, and when the driving rod moves from the first preset position to the second preset position, the driving rod controls the first control valve and the second control valve to open simultaneously or sequentially.

6. The adjustable mechanical flush valve flushing system according to claim 5, characterized in that: The driving rod moves from the second preset position to the first preset position, and the first control valve and / or the second control valve are not opened.

7. The adjustable mechanical flush valve flushing system according to claim 6, characterized in that: The first control valve is provided with a first cam mechanism and a first lifting rod, the first cam mechanism is connected to the first lifting rod, the second control valve is provided with a second cam mechanism and a second lifting rod, the second cam mechanism is connected to the second lifting rod; the surface of the driving rod is provided with a first boss and a second boss respectively cooperating with the first cam mechanism and the second cam mechanism; when the first cam mechanism and the first boss give way to each other, the first lifting rod controls the first control valve to close, and when the first cam mechanism and the first boss abut and transmit to each other, the first lifting rod controls the first control valve to open; when the second cam mechanism and the second boss give way to each other, the second lifting rod controls the second control valve to close, and when the second cam mechanism and the second boss abut and transmit to each other, the second lifting rod controls the second control valve to open.

8. The adjustable mechanical flush valve flushing system according to claim 7, characterized in that: The first cam mechanism includes a camshaft and a cam, the camshaft is fixedly connected to the first lifting rod, and a second limiting protrusion is provided on the circumferential surface of the camshaft; the cam is sleeved on the camshaft, and a first limiting protrusion cooperating with the second limiting protrusion is provided on the inner circumferential surface of the cam; the first boss on the driving rod drives the cam to rotate in a clockwise direction, and the cam rotates relative to the camshaft to make way for the first boss; the cam can rotate counterclockwise under the action of gravity or elastic force, so that the first limiting protrusion and the second limiting protrusion limit rotation, and then the cam abuts against the first boss to drive the first lifting rod to open the first pressure relief hole of the first control valve; the second cam mechanism has the same structure as the first cam mechanism, and the camshaft of the second cam mechanism is fixedly connected to the second lifting rod.

9. The adjustable mechanical flush valve flushing system according to claim 7, characterized in that: The driving rod includes the first boss and the second boss arranged at intervals in front and back along the movement direction of the driving rod; or, the driving rod includes two first rod bodies and second rod bodies arranged in parallel, the first rod body is provided with the first boss, the second rod body is provided with the second boss, and the first boss and the second boss are staggered along the movement direction of the driving rod.

10. An adjustable mechanical flush valve flushing system according to claim 9, characterized in that: There are two first bosses, which are spaced apart from each other in the front and back direction of the driving rod; and there is one second boss.

11. The adjustable mechanical flush valve flushing system according to claim 1, characterized in that: It also includes a switch, and a driving water circuit is also provided on the valve body. The water inlet channel is connected to the driving cylinder through the driving water circuit. A second pressure relief hole is provided on one side of the driving water circuit. A water stop pad cooperating with the second pressure relief hole is provided in the driving water circuit. The switch can open the second pressure relief hole so that the water pressure can push open the water stop pad.

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